mirror of
https://github.com/kata-containers/kata-containers.git
synced 2025-08-14 06:06:12 +00:00
Merge pull request #1597 from jongwu/PA
kernel: upgrade kernel to 5.10.x for arm64.
This commit is contained in:
GabyCT
GitHub
commit
201ad249c2
@ -0,0 +1,31 @@
|
|||||||
|
From 0b0f3b3cd9c00bc5bce5686303ef008212ce9b99 Mon Sep 17 00:00:00 2001
|
||||||
|
From: Jianyong Wu <jianyong.wu@arm.com>
|
||||||
|
Date: Wed, 31 Mar 2021 10:00:53 +0800
|
||||||
|
Subject: [PATCH] arm64/mmu: compared with linear start physical address as
|
||||||
|
signed
|
||||||
|
|
||||||
|
When CONFIG_RANDOM_BASE is enabled, the physical base address can be
|
||||||
|
a negative number. It may lead to bug if it is compared as a unsigned
|
||||||
|
number. So cast it before comparison.
|
||||||
|
|
||||||
|
Signed-off-by: Jianyong Wu <jianyong.wu@arm.com>
|
||||||
|
---
|
||||||
|
arch/arm64/mm/mmu.c | 2 +-
|
||||||
|
1 file changed, 1 insertion(+), 1 deletion(-)
|
||||||
|
|
||||||
|
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
|
||||||
|
index ca692a815731..24b36c85edf4 100644
|
||||||
|
--- a/arch/arm64/mm/mmu.c
|
||||||
|
+++ b/arch/arm64/mm/mmu.c
|
||||||
|
@@ -1453,7 +1453,7 @@ static bool inside_linear_region(u64 start, u64 size)
|
||||||
|
* range which can be mapped inside this linear mapping range, must
|
||||||
|
* also be derived from its end points.
|
||||||
|
*/
|
||||||
|
- return start >= __pa(_PAGE_OFFSET(vabits_actual)) &&
|
||||||
|
+ return (s64)start >= (s64)(__pa(_PAGE_OFFSET(vabits_actual))) &&
|
||||||
|
(start + size - 1) <= __pa(PAGE_END - 1);
|
||||||
|
}
|
||||||
|
|
||||||
|
--
|
||||||
|
2.17.1
|
||||||
|
|
||||||
@ -1,389 +0,0 @@
|
|||||||
From patchwork Mon Jan 18 13:12:59 2021
|
|
||||||
From: Anshuman Khandual <anshuman.khandual@arm.com>
|
|
||||||
Subject: [PATCH V3 1/3] mm/memory_hotplug: Prevalidate the address range being
|
|
||||||
added with platform
|
|
||||||
Date: Mon, 18 Jan 2021 18:42:59 +0530
|
|
||||||
Message-Id: <1610975582-12646-2-git-send-email-anshuman.khandual@arm.com>
|
|
||||||
X-Mailer: git-send-email 2.7.4
|
|
||||||
In-Reply-To: <1610975582-12646-1-git-send-email-anshuman.khandual@arm.com>
|
|
||||||
References: <1610975582-12646-1-git-send-email-anshuman.khandual@arm.com>
|
|
||||||
X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4
|
|
||||||
Sender: owner-linux-mm@kvack.org
|
|
||||||
Precedence: bulk
|
|
||||||
X-Loop: owner-majordomo@kvack.org
|
|
||||||
List-ID: <linux-mm.kvack.org>
|
|
||||||
|
|
||||||
This introduces memhp_range_allowed() which can be called in various memory
|
|
||||||
hotplug paths to prevalidate the address range which is being added, with
|
|
||||||
the platform. Then memhp_range_allowed() calls memhp_get_pluggable_range()
|
|
||||||
which provides applicable address range depending on whether linear mapping
|
|
||||||
is required or not. For ranges that require linear mapping, it calls a new
|
|
||||||
arch callback arch_get_mappable_range() which the platform can override. So
|
|
||||||
the new callback, in turn provides the platform an opportunity to configure
|
|
||||||
acceptable memory hotplug address ranges in case there are constraints.
|
|
||||||
|
|
||||||
This mechanism will help prevent platform specific errors deep down during
|
|
||||||
hotplug calls. This drops now redundant check_hotplug_memory_addressable()
|
|
||||||
check in __add_pages() but instead adds a VM_BUG_ON() check which would
|
|
||||||
ensure that the range has been validated with memhp_range_allowed() earlier
|
|
||||||
in the call chain. Besides memhp_get_pluggable_range() also can be used by
|
|
||||||
potential memory hotplug callers to avail the allowed physical range which
|
|
||||||
would go through on a given platform.
|
|
||||||
|
|
||||||
This does not really add any new range check in generic memory hotplug but
|
|
||||||
instead compensates for lost checks in arch_add_memory() where applicable
|
|
||||||
and check_hotplug_memory_addressable(), with unified memhp_range_allowed().
|
|
||||||
|
|
||||||
Cc: David Hildenbrand <david@redhat.com>
|
|
||||||
Cc: Andrew Morton <akpm@linux-foundation.org>
|
|
||||||
Cc: linux-mm@kvack.org
|
|
||||||
Cc: linux-kernel@vger.kernel.org
|
|
||||||
Suggested-by: David Hildenbrand <david@redhat.com>
|
|
||||||
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
|
|
||||||
Reviewed-by: Oscar Salvador <osalvador@suse.de>
|
|
||||||
---
|
|
||||||
include/linux/memory_hotplug.h | 10 +++++
|
|
||||||
mm/memory_hotplug.c | 79 ++++++++++++++++++++++++++--------
|
|
||||||
mm/memremap.c | 6 +++
|
|
||||||
3 files changed, 76 insertions(+), 19 deletions(-)
|
|
||||||
|
|
||||||
diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h
|
|
||||||
index 15acce5ab106..439b013f818a 100644
|
|
||||||
--- a/include/linux/memory_hotplug.h
|
|
||||||
+++ b/include/linux/memory_hotplug.h
|
|
||||||
@@ -70,6 +70,9 @@ typedef int __bitwise mhp_t;
|
|
||||||
*/
|
|
||||||
#define MEMHP_MERGE_RESOURCE ((__force mhp_t)BIT(0))
|
|
||||||
|
|
||||||
+bool memhp_range_allowed(u64 start, u64 size, bool need_mapping);
|
|
||||||
+struct range memhp_get_pluggable_range(bool need_mapping);
|
|
||||||
+
|
|
||||||
/*
|
|
||||||
* Extended parameters for memory hotplug:
|
|
||||||
* altmap: alternative allocator for memmap array (optional)
|
|
||||||
@@ -281,6 +284,13 @@ static inline bool movable_node_is_enabled(void)
|
|
||||||
}
|
|
||||||
#endif /* ! CONFIG_MEMORY_HOTPLUG */
|
|
||||||
|
|
||||||
+/*
|
|
||||||
+ * Keep this declaration outside CONFIG_MEMORY_HOTPLUG as some
|
|
||||||
+ * platforms might override and use arch_get_mappable_range()
|
|
||||||
+ * for internal non memory hotplug purposes.
|
|
||||||
+ */
|
|
||||||
+struct range arch_get_mappable_range(void);
|
|
||||||
+
|
|
||||||
#if defined(CONFIG_MEMORY_HOTPLUG) || defined(CONFIG_DEFERRED_STRUCT_PAGE_INIT)
|
|
||||||
/*
|
|
||||||
* pgdat resizing functions
|
|
||||||
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
|
|
||||||
index f9d57b9be8c7..f62664e77ff9 100644
|
|
||||||
--- a/mm/memory_hotplug.c
|
|
||||||
+++ b/mm/memory_hotplug.c
|
|
||||||
@@ -107,6 +107,9 @@ static struct resource *register_memory_resource(u64 start, u64 size,
|
|
||||||
if (strcmp(resource_name, "System RAM"))
|
|
||||||
flags |= IORESOURCE_SYSRAM_DRIVER_MANAGED;
|
|
||||||
|
|
||||||
+ if (!memhp_range_allowed(start, size, true))
|
|
||||||
+ return ERR_PTR(-E2BIG);
|
|
||||||
+
|
|
||||||
/*
|
|
||||||
* Make sure value parsed from 'mem=' only restricts memory adding
|
|
||||||
* while booting, so that memory hotplug won't be impacted. Please
|
|
||||||
@@ -284,22 +287,6 @@ static int check_pfn_span(unsigned long pfn, unsigned long nr_pages,
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
-static int check_hotplug_memory_addressable(unsigned long pfn,
|
|
||||||
- unsigned long nr_pages)
|
|
||||||
-{
|
|
||||||
- const u64 max_addr = PFN_PHYS(pfn + nr_pages) - 1;
|
|
||||||
-
|
|
||||||
- if (max_addr >> MAX_PHYSMEM_BITS) {
|
|
||||||
- const u64 max_allowed = (1ull << (MAX_PHYSMEM_BITS + 1)) - 1;
|
|
||||||
- WARN(1,
|
|
||||||
- "Hotplugged memory exceeds maximum addressable address, range=%#llx-%#llx, maximum=%#llx\n",
|
|
||||||
- (u64)PFN_PHYS(pfn), max_addr, max_allowed);
|
|
||||||
- return -E2BIG;
|
|
||||||
- }
|
|
||||||
-
|
|
||||||
- return 0;
|
|
||||||
-}
|
|
||||||
-
|
|
||||||
/*
|
|
||||||
* Reasonably generic function for adding memory. It is
|
|
||||||
* expected that archs that support memory hotplug will
|
|
||||||
@@ -317,9 +304,8 @@ int __ref __add_pages(int nid, unsigned long pfn, unsigned long nr_pages,
|
|
||||||
if (WARN_ON_ONCE(!params->pgprot.pgprot))
|
|
||||||
return -EINVAL;
|
|
||||||
|
|
||||||
- err = check_hotplug_memory_addressable(pfn, nr_pages);
|
|
||||||
- if (err)
|
|
||||||
- return err;
|
|
||||||
+ if(!memhp_range_allowed(PFN_PHYS(pfn), nr_pages * PAGE_SIZE, false))
|
|
||||||
+ return -E2BIG;
|
|
||||||
|
|
||||||
if (altmap) {
|
|
||||||
/*
|
|
||||||
@@ -1180,6 +1166,61 @@ int add_memory_driver_managed(int nid, u64 start, u64 size,
|
|
||||||
}
|
|
||||||
EXPORT_SYMBOL_GPL(add_memory_driver_managed);
|
|
||||||
|
|
||||||
+/*
|
|
||||||
+ * Platforms should define arch_get_mappable_range() that provides
|
|
||||||
+ * maximum possible addressable physical memory range for which the
|
|
||||||
+ * linear mapping could be created. The platform returned address
|
|
||||||
+ * range must adhere to these following semantics.
|
|
||||||
+ *
|
|
||||||
+ * - range.start <= range.end
|
|
||||||
+ * - Range includes both end points [range.start..range.end]
|
|
||||||
+ *
|
|
||||||
+ * There is also a fallback definition provided here, allowing the
|
|
||||||
+ * entire possible physical address range in case any platform does
|
|
||||||
+ * not define arch_get_mappable_range().
|
|
||||||
+ */
|
|
||||||
+struct range __weak arch_get_mappable_range(void)
|
|
||||||
+{
|
|
||||||
+ struct range memhp_range = {
|
|
||||||
+ .start = 0UL,
|
|
||||||
+ .end = -1ULL,
|
|
||||||
+ };
|
|
||||||
+ return memhp_range;
|
|
||||||
+}
|
|
||||||
+
|
|
||||||
+struct range memhp_get_pluggable_range(bool need_mapping)
|
|
||||||
+{
|
|
||||||
+ const u64 max_phys = (1ULL << (MAX_PHYSMEM_BITS + 1)) - 1;
|
|
||||||
+ struct range memhp_range;
|
|
||||||
+
|
|
||||||
+ if (need_mapping) {
|
|
||||||
+ memhp_range = arch_get_mappable_range();
|
|
||||||
+ if (memhp_range.start > max_phys) {
|
|
||||||
+ memhp_range.start = 0;
|
|
||||||
+ memhp_range.end = 0;
|
|
||||||
+ }
|
|
||||||
+ memhp_range.end = min_t(u64, memhp_range.end, max_phys);
|
|
||||||
+ } else {
|
|
||||||
+ memhp_range.start = 0;
|
|
||||||
+ memhp_range.end = max_phys;
|
|
||||||
+ }
|
|
||||||
+ return memhp_range;
|
|
||||||
+}
|
|
||||||
+EXPORT_SYMBOL_GPL(memhp_get_pluggable_range);
|
|
||||||
+
|
|
||||||
+bool memhp_range_allowed(u64 start, u64 size, bool need_mapping)
|
|
||||||
+{
|
|
||||||
+ struct range memhp_range = memhp_get_pluggable_range(need_mapping);
|
|
||||||
+ u64 end = start + size;
|
|
||||||
+
|
|
||||||
+ if (start < end && start >= memhp_range.start && (end - 1) <= memhp_range.end)
|
|
||||||
+ return true;
|
|
||||||
+
|
|
||||||
+ pr_warn("Hotplug memory [%#llx-%#llx] exceeds maximum addressable range [%#llx-%#llx]\n",
|
|
||||||
+ start, end, memhp_range.start, memhp_range.end);
|
|
||||||
+ return false;
|
|
||||||
+}
|
|
||||||
+
|
|
||||||
#ifdef CONFIG_MEMORY_HOTREMOVE
|
|
||||||
/*
|
|
||||||
* Confirm all pages in a range [start, end) belong to the same zone (skipping
|
|
||||||
diff --git a/mm/memremap.c b/mm/memremap.c
|
|
||||||
index 16b2fb482da1..e15b13736f6a 100644
|
|
||||||
--- a/mm/memremap.c
|
|
||||||
+++ b/mm/memremap.c
|
|
||||||
@@ -253,6 +253,12 @@ static int pagemap_range(struct dev_pagemap *pgmap, struct mhp_params *params,
|
|
||||||
goto err_kasan;
|
|
||||||
}
|
|
||||||
|
|
||||||
+ if (!memhp_range_allowed(range->start, range_len(range), true)) {
|
|
||||||
+ error = -ERANGE;
|
|
||||||
+ mem_hotplug_done();
|
|
||||||
+ goto err_add_memory;
|
|
||||||
+ }
|
|
||||||
+
|
|
||||||
error = arch_add_memory(nid, range->start, range_len(range),
|
|
||||||
params);
|
|
||||||
}
|
|
||||||
|
|
||||||
From patchwork Mon Jan 18 13:13:00 2021
|
|
||||||
From: Anshuman Khandual <anshuman.khandual@arm.com>
|
|
||||||
To: linux-mm@kvack.org,
|
|
||||||
akpm@linux-foundation.org,
|
|
||||||
david@redhat.com,
|
|
||||||
hca@linux.ibm.com,
|
|
||||||
catalin.marinas@arm.com
|
|
||||||
Cc: Anshuman Khandual <anshuman.khandual@arm.com>,
|
|
||||||
Oscar Salvador <osalvador@suse.de>,
|
|
||||||
Vasily Gorbik <gor@linux.ibm.com>,
|
|
||||||
Will Deacon <will@kernel.org>,
|
|
||||||
Ard Biesheuvel <ardb@kernel.org>,
|
|
||||||
Mark Rutland <mark.rutland@arm.com>,
|
|
||||||
linux-arm-kernel@lists.infradead.org,
|
|
||||||
linux-s390@vger.kernel.org,
|
|
||||||
linux-kernel@vger.kernel.org
|
|
||||||
Subject: [PATCH V3 2/3] arm64/mm: Define arch_get_mappable_range()
|
|
||||||
Date: Mon, 18 Jan 2021 18:43:00 +0530
|
|
||||||
Message-Id: <1610975582-12646-3-git-send-email-anshuman.khandual@arm.com>
|
|
||||||
X-Mailer: git-send-email 2.7.4
|
|
||||||
In-Reply-To: <1610975582-12646-1-git-send-email-anshuman.khandual@arm.com>
|
|
||||||
References: <1610975582-12646-1-git-send-email-anshuman.khandual@arm.com>
|
|
||||||
X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4
|
|
||||||
Sender: owner-linux-mm@kvack.org
|
|
||||||
Precedence: bulk
|
|
||||||
X-Loop: owner-majordomo@kvack.org
|
|
||||||
List-ID: <linux-mm.kvack.org>
|
|
||||||
|
|
||||||
This overrides arch_get_mappable_range() on arm64 platform which will be
|
|
||||||
used with recently added generic framework. It drops inside_linear_region()
|
|
||||||
and subsequent check in arch_add_memory() which are no longer required. It
|
|
||||||
also adds a VM_BUG_ON() check that would ensure that memhp_range_allowed()
|
|
||||||
has already been called.
|
|
||||||
|
|
||||||
Cc: Catalin Marinas <catalin.marinas@arm.com>
|
|
||||||
Cc: Will Deacon <will@kernel.org>
|
|
||||||
Cc: Ard Biesheuvel <ardb@kernel.org>
|
|
||||||
Cc: Mark Rutland <mark.rutland@arm.com>
|
|
||||||
Cc: David Hildenbrand <david@redhat.com>
|
|
||||||
Cc: linux-arm-kernel@lists.infradead.org
|
|
||||||
Cc: linux-kernel@vger.kernel.org
|
|
||||||
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
|
|
||||||
Reviewed-by: David Hildenbrand <david@redhat.com>
|
|
||||||
---
|
|
||||||
arch/arm64/mm/mmu.c | 15 +++++++--------
|
|
||||||
1 file changed, 7 insertions(+), 8 deletions(-)
|
|
||||||
|
|
||||||
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
|
|
||||||
index ae0c3d023824..f2e1770c9f29 100644
|
|
||||||
--- a/arch/arm64/mm/mmu.c
|
|
||||||
+++ b/arch/arm64/mm/mmu.c
|
|
||||||
@@ -1442,16 +1442,19 @@ static void __remove_pgd_mapping(pgd_t *pgdir, unsigned long start, u64 size)
|
|
||||||
free_empty_tables(start, end, PAGE_OFFSET, PAGE_END);
|
|
||||||
}
|
|
||||||
|
|
||||||
-static bool inside_linear_region(u64 start, u64 size)
|
|
||||||
+struct range arch_get_mappable_range(void)
|
|
||||||
{
|
|
||||||
+ struct range memhp_range;
|
|
||||||
+
|
|
||||||
/*
|
|
||||||
* Linear mapping region is the range [PAGE_OFFSET..(PAGE_END - 1)]
|
|
||||||
* accommodating both its ends but excluding PAGE_END. Max physical
|
|
||||||
* range which can be mapped inside this linear mapping range, must
|
|
||||||
* also be derived from its end points.
|
|
||||||
*/
|
|
||||||
- return start >= __pa(_PAGE_OFFSET(vabits_actual)) &&
|
|
||||||
- (start + size - 1) <= __pa(PAGE_END - 1);
|
|
||||||
+ memhp_range.start = __pa(_PAGE_OFFSET(vabits_actual));
|
|
||||||
+ memhp_range.end = __pa(PAGE_END - 1);
|
|
||||||
+ return memhp_range;
|
|
||||||
}
|
|
||||||
|
|
||||||
int arch_add_memory(int nid, u64 start, u64 size,
|
|
||||||
@@ -1459,11 +1462,7 @@ int arch_add_memory(int nid, u64 start, u64 size,
|
|
||||||
{
|
|
||||||
int ret, flags = 0;
|
|
||||||
|
|
||||||
- if (!inside_linear_region(start, size)) {
|
|
||||||
- pr_err("[%llx %llx] is outside linear mapping region\n", start, start + size);
|
|
||||||
- return -EINVAL;
|
|
||||||
- }
|
|
||||||
-
|
|
||||||
+ VM_BUG_ON(!memhp_range_allowed(start, size, true));
|
|
||||||
if (rodata_full || debug_pagealloc_enabled())
|
|
||||||
flags = NO_BLOCK_MAPPINGS | NO_CONT_MAPPINGS;
|
|
||||||
|
|
||||||
|
|
||||||
From patchwork Mon Jan 18 13:13:01 2021
|
|
||||||
From: Anshuman Khandual <anshuman.khandual@arm.com>
|
|
||||||
To: linux-mm@kvack.org,
|
|
||||||
akpm@linux-foundation.org,
|
|
||||||
david@redhat.com,
|
|
||||||
hca@linux.ibm.com,
|
|
||||||
catalin.marinas@arm.com
|
|
||||||
Cc: Anshuman Khandual <anshuman.khandual@arm.com>,
|
|
||||||
Oscar Salvador <osalvador@suse.de>,
|
|
||||||
Vasily Gorbik <gor@linux.ibm.com>,
|
|
||||||
Will Deacon <will@kernel.org>,
|
|
||||||
Ard Biesheuvel <ardb@kernel.org>,
|
|
||||||
Mark Rutland <mark.rutland@arm.com>,
|
|
||||||
linux-arm-kernel@lists.infradead.org,
|
|
||||||
linux-s390@vger.kernel.org,
|
|
||||||
linux-kernel@vger.kernel.org
|
|
||||||
Subject: [PATCH V3 3/3] s390/mm: Define arch_get_mappable_range()
|
|
||||||
Date: Mon, 18 Jan 2021 18:43:01 +0530
|
|
||||||
Message-Id: <1610975582-12646-4-git-send-email-anshuman.khandual@arm.com>
|
|
||||||
X-Mailer: git-send-email 2.7.4
|
|
||||||
In-Reply-To: <1610975582-12646-1-git-send-email-anshuman.khandual@arm.com>
|
|
||||||
References: <1610975582-12646-1-git-send-email-anshuman.khandual@arm.com>
|
|
||||||
X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4
|
|
||||||
Sender: owner-linux-mm@kvack.org
|
|
||||||
Precedence: bulk
|
|
||||||
X-Loop: owner-majordomo@kvack.org
|
|
||||||
List-ID: <linux-mm.kvack.org>
|
|
||||||
|
|
||||||
This overrides arch_get_mappabble_range() on s390 platform which will be
|
|
||||||
used with recently added generic framework. It modifies the existing range
|
|
||||||
check in vmem_add_mapping() using arch_get_mappable_range(). It also adds a
|
|
||||||
VM_BUG_ON() check that would ensure that memhp_range_allowed() has already
|
|
||||||
been called on the hotplug path.
|
|
||||||
|
|
||||||
Cc: Heiko Carstens <hca@linux.ibm.com>
|
|
||||||
Cc: Vasily Gorbik <gor@linux.ibm.com>
|
|
||||||
Cc: David Hildenbrand <david@redhat.com>
|
|
||||||
Cc: linux-s390@vger.kernel.org
|
|
||||||
Cc: linux-kernel@vger.kernel.org
|
|
||||||
Acked-by: Heiko Carstens <hca@linux.ibm.com>
|
|
||||||
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
|
|
||||||
---
|
|
||||||
arch/s390/mm/init.c | 1 +
|
|
||||||
arch/s390/mm/vmem.c | 15 ++++++++++++++-
|
|
||||||
2 files changed, 15 insertions(+), 1 deletion(-)
|
|
||||||
|
|
||||||
diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c
|
|
||||||
index 73a163065b95..97017a4bcc90 100644
|
|
||||||
--- a/arch/s390/mm/init.c
|
|
||||||
+++ b/arch/s390/mm/init.c
|
|
||||||
@@ -297,6 +297,7 @@ int arch_add_memory(int nid, u64 start, u64 size,
|
|
||||||
if (WARN_ON_ONCE(params->pgprot.pgprot != PAGE_KERNEL.pgprot))
|
|
||||||
return -EINVAL;
|
|
||||||
|
|
||||||
+ VM_BUG_ON(!memhp_range_allowed(start, size, true));
|
|
||||||
rc = vmem_add_mapping(start, size);
|
|
||||||
if (rc)
|
|
||||||
return rc;
|
|
||||||
diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c
|
|
||||||
index 01f3a5f58e64..afc39ff1cc8d 100644
|
|
||||||
--- a/arch/s390/mm/vmem.c
|
|
||||||
+++ b/arch/s390/mm/vmem.c
|
|
||||||
@@ -4,6 +4,7 @@
|
|
||||||
* Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
|
|
||||||
*/
|
|
||||||
|
|
||||||
+#include <linux/memory_hotplug.h>
|
|
||||||
#include <linux/memblock.h>
|
|
||||||
#include <linux/pfn.h>
|
|
||||||
#include <linux/mm.h>
|
|
||||||
@@ -532,11 +533,23 @@ void vmem_remove_mapping(unsigned long start, unsigned long size)
|
|
||||||
mutex_unlock(&vmem_mutex);
|
|
||||||
}
|
|
||||||
|
|
||||||
+struct range arch_get_mappable_range(void)
|
|
||||||
+{
|
|
||||||
+ struct range memhp_range;
|
|
||||||
+
|
|
||||||
+ memhp_range.start = 0;
|
|
||||||
+ memhp_range.end = VMEM_MAX_PHYS - 1;
|
|
||||||
+ return memhp_range;
|
|
||||||
+}
|
|
||||||
+
|
|
||||||
int vmem_add_mapping(unsigned long start, unsigned long size)
|
|
||||||
{
|
|
||||||
+ struct range range;
|
|
||||||
int ret;
|
|
||||||
|
|
||||||
- if (start + size > VMEM_MAX_PHYS ||
|
|
||||||
+ range = arch_get_mappable_range();
|
|
||||||
+ if (start < range.start ||
|
|
||||||
+ start + size > range.end + 1 ||
|
|
||||||
start + size < start)
|
|
||||||
return -ERANGE;
|
|
||||||
|
|
||||||
@ -156,9 +156,6 @@ assets:
|
|||||||
uscan-url: >-
|
uscan-url: >-
|
||||||
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/linux-(5\.4\..+)\.tar\.gz
|
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/linux-(5\.4\..+)\.tar\.gz
|
||||||
version: "v5.10.25"
|
version: "v5.10.25"
|
||||||
architecture:
|
|
||||||
aarch64:
|
|
||||||
version: "v5.4.71"
|
|
||||||
|
|
||||||
kernel-experimental:
|
kernel-experimental:
|
||||||
description: "Linux kernel with virtio-fs support"
|
description: "Linux kernel with virtio-fs support"
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user